1. School of Dentistry, The University of Manchester; Cochrane Oral Health Group; Coupland III Building, Oxford Road Manchester UK M13 9PL
2. The University of Manchester; Cochrane Oral Health Group, School of Dentistry; Coupland III Bldg, Oxford Rd Manchester UK M13 9PL
3. University of Glasgow; Glasgow Dental School; 378 Sauchiehall Street Glasgow UK G2 3JZ
4. RED (Research and Education in Dentistry); 10 Longbow Close, Harlescott Lane Shrewsbury UK SY1 3GZ
5. Cochrane Oral Health Group, The University of Manchester; Dental Health Services & Research Unit, University of Dundee, Dundee; Manchester UK
6. University of Dundee; Unit of Oral Surgery and Medicine; University of Dundee Dental Hospital and School Park Place Dundee Scotland UK DD1 4NR
7. University of Leeds; Clinical Trials Research Unit; Clinical Trials Research House 71-75 Clarendon Road Leeds UK LS2 9NP
8. Princess Margaret Hospital; 610 University Avenue Toronto Ontario Canada M5G 2M9
9. School of Dentistry, The University of Manchester; Coupland III Building Oxford Road Manchester UK M13 9PL